return nil, BucketRemoteTargetNotFound{Bucket: bucket}
	}
	if reloaded {
		globalBucketTargetSys.set(bucket, meta)
	}
	return meta.bucketTargetConfig, nil
}

// GetConfigFromDisk read bucket metadata config from disk.
func (sys *BucketMetadataSys) GetConfigFromDisk(ctx context.Context, bucket string) (BucketMetadata, error) {
	objAPI := newObjectLayerFn()
	if objAPI == nil {

pkg archive/zip, method (*Writer) Copy(*File) error
pkg archive/zip, method (*Writer) CreateRaw(*FileHeader) (io.Writer, error)
pkg compress/lzw, method (*Reader) Close() error
pkg compress/lzw, method (*Reader) Read([]uint8) (int, error)
pkg compress/lzw, method (*Reader) Reset(io.Reader, Order, int)
pkg compress/lzw, method (*Writer) Close() error
pkg compress/lzw, method (*Writer) Reset(io.Writer, Order, int)

 *
 * Features:
 * - Structured JSON logging
 * - Sensitive data masking
 * - Event categorization
 * - Performance metrics
 * - Compliance-ready audit trail
 * - Asynchronous logging with bounded queue
 * - Object pooling to reduce GC pressure
 */
public class SecurityAuditLogger {

    assertThat(Files.toByteArray(asciiFile)).isEqualTo(ASCII.getBytes(US_ASCII));
    assertThat(Files.toByteArray(i18nFile)).isEqualTo(I18N.getBytes(UTF_8));
    assertThat(Files.asByteSource(i18nFile).read()).isEqualTo(I18N.getBytes(UTF_8));
  }

  /** A {@link File} that provides a specialized value for {@link File#length()}. */
  private static class BadLengthFile extends File {

    private final long badLength;

 * <p>Keys and values may be null. All optional multimap methods are supported, and all returned
 * views are modifiable.
 *
 * <p>This class is not threadsafe when any concurrent operations update the multimap. Concurrent
 * read operations will work correctly. To allow concurrent update operations, wrap your multimap
 * with a call to {@link Multimaps#synchronizedSetMultimap}.
 *

  private final ListenerCallQueue<Listener> listeners = new ListenerCallQueue<>();

  /**
   * The current state of the service. This should be written with the lock held but can be read
   * without it because it is an immutable object in a volatile field. This is desirable so that
   * methods like {@link #state}, {@link #failureCause} and notably {@link #toString} can be run
   * without grabbing the lock.

 * <p>Keys and values may be null. All optional multimap methods are supported, and all returned
 * views are modifiable.
 *
 * <p>This class is not threadsafe when any concurrent operations update the multimap. Concurrent
 * read operations will work correctly. To allow concurrent update operations, wrap your multimap
 * with a call to {@link Multimaps#synchronizedSetMultimap}.
 *

     * Delegate impersonation level - server can impersonate the client's security context on remote systems
     */
    public static final int SMB2_IMPERSONATION_LEVEL_DELEGATE = 0x3;

    /**
     * Enable other opens for read access
     */
    public static final int FILE_SHARE_READ = 0x1;

    /**
     * Enable other opens for write access
     */
    public static final int FILE_SHARE_WRITE = 0x2;

    /**

```console
// 環境変数 MY_NAME を作成
$ $Env:MY_NAME = "Wade Wilson"

// 他のプログラムで利用、例えば
$ echo "Hello $Env:MY_NAME"

Hello Wade Wilson
```

</div>

////

## Pythonで環境変数を読み取る { #read-env-vars-in-python }

環境変数はPythonの**外側**（ターミナル、またはその他の方法）で作成し、その後に**Pythonで読み取る**こともできます。

例えば、以下のような`main.py`ファイルを用意します:

```Python hl_lines="3"
import os

name = os.getenv("MY_NAME", "World")

「情境管理器」是那些你可以在 `with` 陳述式中使用的 Python 物件。

例如，[你可以用 `with` 來讀取檔案](https://docs.python.org/3/tutorial/inputoutput.html#reading-and-writing-files)：

```Python
with open("./somefile.txt") as f:
    contents = f.read()
    print(contents)
```

在底層，`open("./somefile.txt")` 會建立一個稱為「情境管理器」的物件。

當 `with` 區塊結束時，它會確保關閉檔案，即使發生了例外也一樣。

當你建立一個含 `yield` 的相依時，**FastAPI** 會在內部為它建立一個情境管理器，並與其他相關工具結合。